How do I install x402 Format Checker?

Pick a client above and copy the generated config. Cursor and VS Code also have a deep link when the server can run locally or remotely.

Is x402 Format Checker official?

No. Registry-listed is not the same as vendor-official. Read the methodology for the difference.

This listing scores 52 (Fair). The formula is published on the methodology page.

x402 Format Checker MCP Server | MCPpedia

IBAN, EU VAT, NIP, REGON, PESEL, email checks. Only $0.001 (0.1 cent) per check via x402 on Base

RegistryRemote

52Fair

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "crewofthecaptain-format-checker": {
      "url": "https://validate.crewofthecaptain.com/mcp"
    }
  }
}

This server does not declare environment variables.

68Good

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RegistryRemotexposedornot99 stars